Lead .NET Full Stack Developer

Sonata Software; Maharashtra; Hybrid; INR 1,200,000 - 2,100,000; Full time

Job summary

Sonata Software in Pune, India, is looking for a hands-on .NET Full Stack Developer with 3–6 years of experience. You will develop across React.js front ends and .NET/C# back ends, collaborating with senior engineers and QA teams in a hybrid work setup.

The role emphasizes learning modern stacks, writing clean code, and adopting AI-assisted development tools in daily delivery. Prior exposure to AI tools like Copilot is a plus.

Qualifications

• 3–6 years of professional software development experience.

Responsibilities

• Build and maintain features across React.js front ends and .NET back ends under guidance of senior engineers.

Skills

React.js

.NET / C#

SQL Server

REST APIs

Full-Stack Web Development

Relational Databases

Basic State Management

Debugging & Troubleshooting

AI-Assisted Development Tools

Tools

Cursor

GitHub Copilot

Windsurf

Job description

Job Description

Job Title- .NET Full Stack Developer

Location- Pune | Hybrid

Experience- 3–6 Years

Primary Skills- React.js, .NET / C#, SQL Server, REST APIs & Full-Stack Development

About The Role

This is a hands-on Individual Contributor (IC) role for someone early in their career who is eager to learn a modern technology stack, develop strong engineering practices, and become comfortable using AI-assisted development tools as part of their daily delivery.

Roles And Responsibilities

• Build and maintain features across React.js front ends and .NET 10 (C#) back ends, under the guidance of senior engineers.
• Write clean, tested, and well-documented code for well-scoped tickets and features.
• Use AI-assisted development tools such as Cursor, GitHub Copilot, or similar tools as part of the day-to-day development workflow.
• Participate in code reviews by both giving and receiving feedback to develop strong engineering practices.
• Work with QA/SDET teams to fix defects and improve test coverage for developed features.
• Learn the portfolio's applications and contribute to bug fixes and small enhancements across business units.
• Maintain parity with legacy system behavior where required.
• Develop and maintain automated tests and perform regression testing against existing systems.
• Collaborate with senior engineers and architects to understand technical requirements and implementation approaches.

Qualifications & Required Skills

• Up to 6 years of professional software development experience.
• Good understanding of React.js, including components, hooks, and basic state management.
• Good understanding of .NET / C#, with exposure to .NET 10 or willingness to learn and ramp up quickly.
• Good understanding of SQL Server and relational databases, including reading queries, understanding existing tables, and testing against development databases.
• Good understanding of REST APIs, relational databases, and full-stack web application architecture.
• Hands-on exposure to AI-assisted development tools such as Cursor, GitHub Copilot, Windsurf, or similar tools, or strong willingness to adopt them.
• Good debugging and problem-solving skills with the ability to ask relevant questions when required.
• Clear communication skills and a collaborative attitude.
• Ability to work effectively with and learn from senior engineers.

Mandatory Skills

• React.js
• .NET / C#
• SQL Server
• REST APIs
• Full-Stack Web Development
• Relational Databases
• Basic State Management
• Debugging & Troubleshooting
• AI-Assisted Development Tools

Good To Have Skills

• Exposure to legacy .NET Framework or Web Forms.
• Academic or personal projects involving React.js and/or .NET.
• Exposure to Git-based development workflows.
• Basic understanding of CI/CD pipelines.
• Interest in application modernization and migration projects.
• Experience with automated testing and regression testing.

About Sonata Software

Sonata Software is an AI-first modernization engineering company that helps enterprises transform legacy systems into intelligent, scalable business platforms. Powered by its Platformation™ framework and Harmoni.AI platform, Sonata delivers AI-led modernization across cloud, data, AI, Dynamics, test automation, and managed services.

Headquartered in Bengaluru, India, Sonata has more than $1.2 billion in revenue and 6,400+ AI engineers supporting global delivery across regions including the US, UK, India, Malaysia, Mexico, Australia, DACH, and the Nordics.

With deep partnerships across Microsoft, AWS, Salesforce, and Snowflake, Sonata helps Fortune 500 enterprises accelerate innovation, improve efficiency, and drive sustainable growth.

For more information, please visit www.sonata-software.com .